Finding the Fourth Proportional to 306,220,309.81, 422,584,695.95 and 174,062,115.97
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Solution
The fourth proportional to 306,220,309.81, 422,584,695.95 and 174,062,115.97 is: 240,206,099.98
Step by Step Solution
- Step 1: Write the proportion equation
306,220,309.81 : 422,584,695.95 = 174,062,115.97 : x - Step 2: Convert to fraction form
306,220,309.81/422,584,695.95 = 174,062,115.97/x - Step 3: Cross multiply
306,220,309.81x = 422,584,695.95 × 174,062,115.97 - Step 4: Simplify right side
306,220,309.81x = 73,555,986,353,596,080 - Step 5: Solve for x
x = 73,555,986,353,596,080/306,220,309.81 - Step 6: Final answer
x = 240,206,099.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.